<script setup>
import{ref,getCurrentInstance,onMounted,reactive} from 'vue'
import axios from 'axios'
import * as echarts from "echarts";
const{proxy}=getCurrentInstance()
const getImageUrl = (user) => {
    // 注意这里要用反引号 `` 包裹字符串，才能让 ${user} 生效
    return new URL(`../assets/images/${user}.png`, import.meta.url).href;
};

const tableData = ref([
    // {
    //   name: "Java",
    //   todayBuy: 100,
    //   monthBuy: 200,
    //   totalBuy: 300,
    // },
    // {
    //   name: "Python",
    //   todayBuy: 100,
    //   monthBuy: 200,
    //   totalBuy: 300,
    // }
])

const countData=ref([])
const chartData=ref([])
const tableLabel = ref({
    name: "课程",
    todayBuy: "今日购买",
    monthBuy: "本月购买",
    totalBuy: "总购买",
})

// axios(
//     {
//     url:'/api/home/getTableData',
//     method:'get'
//     }
// ).then(
//     res=>{
//         if(res.data.code===200){
//             console.log(res.data.data.tableData)
//             tableData.value=res.data.data.tableData
//         }
        
//     }
// )




const getTableData=async()=>{
    const data=await proxy.$api.getTableData()
    console.log(data)
    tableData.value=data.tableData
}

const getCountData=async()=>{
    const data=await proxy.$api.getCountData()
    console.log(data)
    countData.value=data
}

// const getChartData=async()=>{
//     const data=await proxy.$api.getChartData()
//     console.log(data)
//     chartData.value=data
// }

// const getTableData = async () => {
//   try {
//     const data = await proxy.$api.getTableData();
//     console.log('请求成功:', data);
//   } catch (error) {
//     console.error('请求失败原因:', error); // 打印具体错误
//   }
// };




const observer = ref(null)

//这个是折线图和柱状图 两个图表共用的公共配置
const xOptions = reactive({
      // 图例文字颜色
      textStyle: {
        color: "#333",
      },
      legend: {},
      grid: {
        left: "20%",
      },
      // 提示框
      tooltip: {
        trigger: "axis",
      },
      xAxis: {
        type: "category", // 类目轴
        data: [],
        axisLine: {
          lineStyle: {
            color: "#17b3a3",
          },
        },
        axisLabel: {
          interval: 0,
          color: "#333",
        },
      },
      yAxis: [
        {
          type: "value",
          axisLine: {
            lineStyle: {
              color: "#17b3a3",
            },
          },
        },
      ],
      color: ["#2ec7c9", "#b6a2de", "#5ab1ef", "#ffb980", "#d87a80", "#8d98b3"],
      series: [],
})

const pieOptions = reactive({
  tooltip: {
    trigger: "item",
  },
  legend: {},
  color: [
    "#0f78f4",
    "#dd536b",
    "#9462e5",
    "#a6a6a6",
    "#e1bb22",
    "#39c362",
    "#3ed1cf",
  ],
  series: []
})

//请求图表数据并渲染的方法
const getChartData = async () => {
    const {orderData,userData,videoData} = await proxy.$api.getChartData()
    //对第一个图表的xAxis和series赋值
    xOptions.xAxis.data=orderData.date
    xOptions.series = Object.keys(orderData.data[0]).map(val=>({
      name:val,
      data:orderData.data.map(item=>item[val]),
      type: "line"
    })
    )
    //one               echarts.init方法初始化ECharts实例，需要传入dom对象
    const OneEcharts = echarts.init(proxy.$refs["echart"])
    //setOption方法应用配置对象
    OneEcharts.setOption(xOptions)
    
	//对第二个图表的xAxis和series赋值
    xOptions.xAxis.data = userData.map((item) => item.date)
    xOptions.series = [
        {
          name: "新增用户",
          data: userData.map((item) => item.new),
          type: "bar",
        },
        {
          name: "活跃用户",
          data: userData.map((item) => item.active),
          type: "bar",
        }
      ]
    //two
    const TwoEcharts = echarts.init(proxy.$refs["userEchart"])
    TwoEcharts.setOption(xOptions)
    
	//对第三个图表的series赋值
    pieOptions.series = [
        {
          data: videoData,
          type: "pie",
        },
      ]
    //three
    const ThreeEcharts = echarts.init(proxy.$refs["videoEchart"])
    ThreeEcharts.setOption(pieOptions);

    //ResizeObserver 如果监视的容器大小变化，如果改变会执行传递的回调
    observer.value = new ResizeObserver(entries => {
        OneEcharts.resize()
        TwoEcharts.resize()
        ThreeEcharts.resize()
    })
    //如果这个容器存在
    if (proxy.$refs["echart"]) {
        //则调用监视器的observe方法，监视这个容器的大小
      observer.value.observe(proxy.$refs["echart"]);
    }
}

onMounted(()=>{
    getTableData()
    getCountData()
    getChartData()
})
</script>

<template>

  <el-row class="home" :gutter="20">
    <el-col :span="8" style="margin-top: 20px">
        
      <el-card shadow="hover">
        <div class="user">
          <img :src="getImageUrl('user')"  class="user" />
          <div class="user-info">
            <p>Admin</p>
            <p>超级管理员</p>
          </div>
        </div>
        <div class="login-info">
          <p>上次登录时间:<span>2022-7-11</span></p>
          <p>上次登录的地点:<span>北京</span></p>
        </div>
      </el-card>
        
      <el-card shadow="hover" class="table" >
          
        <el-table :data="tableData">
          <el-table-column
            v-for="(val, key) in tableLabel"
            :key="key"
            :prop="key"
            :label="val"
          >
          </el-table-column>
        </el-table>
          
      </el-card>

    </el-col>
    <el-col :span="16" style="margin-top: 20px">
        <div class="num">
                    <el-card :body-style="{display:'flex',padding:0}"
        v-for="item in countData"
        :key="item.name"

        >
        <component :is="item.icon" class="icons" :style="{background:item.color}"></component>
        <div class="detail">
            <p class="num">￥{{item.value}}</p>
            <p class="txt">￥{{item.name}}</p>
        </div>
        </el-card>
        </div>
        <el-card class="top-echart">
            <div ref="echart" style="height:280px"></div>
        </el-card>
        <div class="graph">
            <el-card>
                <div ref="userEchart" style="height: 240px;"></div>    
            </el-card> 
            <el-card>
                <div ref="videoEchart" style="height: 240px;"></div>    
            </el-card>   
        </div>

    </el-col>
   
      
  </el-row>
</template>

<style scoped lang="less">
  .home{
   height:100%;
   overflow:auto;
   .user{
      display:flex;
      align-items:center;
      border-bottom:1px solid #ccc;
      margin-bottom:20px;
      img{
         width:150px;
         height:150px;
         border-radius:50%;
         margin-right:40px; 

      }
      .user-info{
         p{
            line-height:40px;
         }
         .user-info-p{
            color:#999;
         }
         .user-info-admin{
            font-size:35px
         }
      }
   }
   .login-info{
      p{
         line-height:30px;
         font-size:14px;
         color:#999;
         span{
            color:#666;
            margin-left:60px;
         }
      }
   }
   .user-table{
      margin-top:20px;
   }
   .num{
      display:flex;
      flex-wrap:wrap;
      justify-content:space-between;
      .el-card{
         width:32%;
         margin-bottom:20px;
      }
      .icons{
         width:80px;
         height:80px;
         font-size:30px;
         text-align:center;
         line-height:80px;
         color:#fff;
      }
      .detail{
         margin-left:15px;
         display:flex;
         flex-direction:column;
         justify-content:center;
         .num{
            font-size:30px;
            margin-bottom:10px
         }
         .txt{
            font-size:15px;
            text-align:center;
            color:#999;
         }
      }
   }
   .graph{
      margin-top:20px;
      display:flex;
      justify-content:space-between;
      .el-card{
         width:48%;
         height:260px;
      }
   }
  }
</style>
